baber/WOPTO huggingface dataset:
Patent GB-642268-A (GB)
Title: Land- grubbers
IPC: A01G23/06
Filed: 1948-02-21
Abstract: 642,268. Earth-working implements. PRICE, J. E., PEACOCK, T. W., and PEACOCK, G. W. Feb. 21, 1948, No. 5208. Convention date, Dec. 14, 1945. [Class 68 (i)] [Also in Group I] A land-clearing device comprises a tractor 1 having a pivoted yoke 2 on which is mounted a frame composed of upper and lower cross-bars 5 and 8 interconnected by end-plates 9 and carrying curved rake teeth 17, the front edges of the teeth being curved on two different radii. The yoke is pivoted to the tractor chassis and may be lifted by poweroperated arms 3. The cross-bars extend either perpendicularly or obliquely to the line of travel and may carry perforated plates filling the spaces between the teeth. The upper portions of the teeth are curved on a smaller radius 18 than that, 19, of the lower portions, and these portions have rearward extensions 22 underlying the bar 8. Adjustable skids 15 are carried on the lower bar. The end plates 9 have sharpened knife-edges 20 to assist in breaking down adjacent vegetation.
Patent GB-163774-A (GB)
Title: Improvements in or relating to variable speed friction gear
IPC: F16H15/38
Filed: 1920-02-20
Abstract: 163,774. Boyce, B. A. M. Feb. 20, 1920 Variable-speed friction gearing of the kind comprising driving and driven elements h, i having annular gear tracks of curved contour connected by a roller or rollers a which are tilted to vary the speed. is modified as to the mounting of these rollers. The roller or each roller a has a dished hub b revolubly mounted on a spindle c. Each spindle c is pivotally mounted upon gudgeons d in the medial plane of the gear a extending transversely into bearings in fixed forked supports e. The outer ends of the spindles c are operated in unison from a sliding sleeve k to which they may be connected by links j. One or both of the elements h, i is slidable and spring- pressed.
Patent GB-1382394-A (GB)
Title: Hyddraulic machines
IPC: F03B3/14
Filed: 1973-02-02
Abstract: 1382394 Hydraulic turbines and pumps LENINGRADSKY DVAZHDY ORDENA LENINA METALLICHESKY ZAVOD IMENI XXII SIEZDA KPSS 2 Feb 1973 5224/73 Headings F1C and F1T An axial or mixed flow hydraulic pump or turbine has runner blades 3 angularly adjustable by means of a rotary servomotor 5 having vanes 11  rigidly secured, e.g. by bolts 12, to a rotatable plate 4 pivotally connected to levers 2 attached to the blade journals 6. The pivotal connection is by means of a pin 7 fixed to plate 4 and having a spherical head 8 engaging a floating slide block 9 located in a slot 10 in lever 2. The fixed vanes 13 of servomotor 5 are secured to wall 14 or hub casing 1. Operating oil is supplied to servomotor 5 through pipes 15. Air to reduce cavitation is supplied through pipe 16 to a region below the runner. In a modification, Fig. 3, (not shown) each pin 7 extends parallel to the pivotal axis of its associated blade 3.
Patent GB-144355-A (GB)
Title: Improvements in and relating to music rolls for use in piano players and the like
IPC: G10F5/04
Filed: 1919-03-03
Abstract: 144,355. Reynolds, R. March 3, 1919. Tune-sheets.-A tune-sheet has longitudinal markings b representing the notes of a piano, transverse markings d, e representing bars and beats of the music, and note perforations c in the longitudinal spaces situated in definite relation to the transverse markings. The spaces corresponding to the black notes may be black, shaded, or coloured. The bar divisions d may be ruled across the whole sheet, and the beat divisons e only across the black note spaces, as shown. The space occupied by different beats may vary. Such sheets mav be produced by the registering-apparatus described in Specification 134,324.
Patent GB-1014116-A (GB)
Title: Control signal device for step motor
IPC: H02K19/24
Filed: 1964-02-07
Abstract: 1,014,116. Transformers. TOKYO KEIKI SEIZOSHO KABUSHIKI-KAISHA. Feb. 7, 1964 [June 24, 1963], No. 5263/64. Heading H1T. Secondary windings 21, 22, 23, 21<SP>1</SP>, 22<SP>1</SP>, 23<SP>1</SP> (Fig. 4) of a control signal device which supplies a step motor are mounted on polepieces of a stator 44, windings mounted on opposite polepieces being connected in series so that a rotor 24 provides a preferential magnetic coupling between a primary winding mounted on the stator and one pair of secondaries according to its position so that a control signal is delivered from this pair of secondaries. As the rotor rotates, differing pairs of secondaries deliver the control signal to the step motor and only when the rotor is in a position between two adjacent polepieces is a signal delivered from adjacent secondaries. The primary windings 31, 32, 33, 31<SP>1</SP>, 32<SP>1</SP>, 33<SP>1</SP> may be mounted on all the polepieces of the stator or may be wound around a diameter of the stator and the rotor may be in the form of a cross (Fig. 6, not shown). The stator and rotor are made either of laminated magnetic material or of ferrite material.
Patent GB-1128883-A (GB)
Title: Proximity sensing apparatus
IPC: H03K17/95
Filed: 1967-02-03
Abstract: 1,128,883. Proximity sensors. ELECTRO DEVELOPMENT CORP. Feb. 3, 1967 [Dec. 23, 1966], No.5327/67. Heading G1N. A proximity device comprises two coils 18, 19, Fig. 1A, carried on the ends of a U-shaped laminated core 17, the coils being connected in one arm of a Maxwell bridge. Magnetic stainless steel pole pieces 15, 16, forming part of a non-magnetic stainless steel housing 11, are welded to the ends of the core. The assembly is potted in a suitable epoxy, the core having previously been coated with a layer 45 of resilient, elastic, protective material to allow for expansion and contraction of the potting compound. The bridge, which includes temperature compensating resistors (R1), (R9), Fig. 5 (not shown), in its two halves 22, 23, Fig. 2, the former resistor being closely associated with the coils 18, 19, see also Fig. 3 (not shown), is energized from a square wave oscillator 21, including transistors (Q4), (Q5). The output from the bridge is rectified in a synchronous detector 24, including transistor (Q11), and fed to a Schmidt trigger circuit 28, including diode (CR4) which compensates the base emitter voltage of transistor (Q6) to maintain a constant threshold voltage. The output from circuit 28 is then fed to a driving transistor (Q8) of driver 29 connected to a load circuit switch (Q9), of load switch 30, in series with load 32. The transistor (Q8) is connected via switch (38) to switch (Q9) so that it is either non-conducting or conducting when the body to be detected is absent. A fail-safe device is included in the circuit so that if one of the sensor leads is open or short circuited the transistor (Q8) is held against conduction or the transistor (Q9) is rendered conductive dependent on the position of switch (Q8).
Patent GB-430189-A (GB)
Title: Improvements in discharge devices for use with conveyers
IPC: B65G47/62
Filed: 1934-02-17
Abstract: 430,189. Endless - chain conveyers. MORRIS, Ltd., H., and SMITH, G. T., Empress Works, Loughborough, Leicestershire. Feb. 17, 1934, No. 5330. [Class 78 (i)] In conveyers of the kind in which the load is carried on tiltable trays 4 mounted in frames 5 suspended from trolleys 2, each load carrier has a rocking arm 10 carrying a pawl 9 which engages a ratchet wheel 8, Fig. 4, having at least one tooth 13<a> so shaped as to permit the pawl when it engages this tooth to engage also a tooth 14 on a lever arm 15 which through the medium of links 16, 17, 18 serves to tilt the tray. The ratchet wheel is provided with teeth 13, Fig. 4, corresponding in number to the discharge stations to bo served, and with means for holding it in any set position to effect discharge at a particular station. Rollers 25 on each arm 10 engage ramps 26 at each discharge station, and effect the advance of the ratchet through one tooth. After engagement with the tooth 13<a>, the pawl rides backwards and forwards over the adjacent longer tooth 13<b>, and does not advance the ratchet. Steadying rollers 28 on the carrier engage the ramps and prevent swinging. The ratchets may be remotely controlled to vary the setting for different trays by means of a rack, Fig. 5, the teeth of which engage a star wheel 34 mounted on an extension of the ratchet spindle 7. The teeth 32 of the rack normally are held out of engagement with the star wheel by springs 35, and are depressed by a sliding ramp 36 actuated by a pinion 37. In a modification the spindle 7 carries an additional ratchet wheel which is rotated by a pawl mounted on a pivoted link when the latter engages a ramp. The ramp has a number of spaced teeth each adapted to operate the pivoted link and rotate the setting ratchet one tooth, the number of effective teeth being varied by means of a rack adapted to be moved longitudinally to close the gap between one or more of the teeth. The ramp is movable vertically out of the path of the pivoted link. A signalling device, such as an electric lamp or buzzer or bell, may be provided which will give warning of the approach of a tray to a station, or to any predetermined preceding station, where it will discharge its load, or give warning that a tray is about to discharge its load at the next station or at any predetermined station following the station where the signal is placed.
Patent GB-434766-A (GB)
Title: Improvements in or relating to sockets for contact plugs of thermionic valves and the like
IPC: H01J19/66
Filed: 1935-02-19
Abstract: 434,766. Thermionic-valve holders. CINCH MANUFACTURING CORPORATION, 2335, West Van Buren Street, Chicago, U.S.A.- (Assignees of Knutson, C. L. ; 2335, West Van Buren Street, Chicago, U.S.A.) Feb. 19, 1935, No. 5335. Convention date, Feb. 23, 1934. [Class 39 (i)] [See also Group XXXVI] A thermionic-valve holder comprises a pair of spaced apertured insulating plates 1, 6 held together in fixed relation by a single rivet 9 passing through diametrical offsets from the central apertures and having bifurcated legs upset against the lower plate. The rivet is apertured to correspond with the central holes in the plates.
Patent GB-1144745-A (GB)
Title: Safety harness device
Inventor: GLAUSER JAMES E
IPC: B60R22/38
Filed: 1967-02-03
Abstract: 1,144,745. Disc brakes. PACIFIC SCIENTIFIC CO. 3 Feb., 1967 [21 Feb., 1966], No. 5388/67. Heading F2E. [Also in Division A3] A safety harness mounting comprises a reel 10 rotatable with a spindle 6 through a flat 9, urged in the wind-in direction by a spring 16 and having an annular flange 11 at one end and a disc flange 12 at the other. A series of balls 22 housed in tapered recesses 20, 20<SP>1</SP> in the flange 11 and in a clutch ring 23 respectively are located in apertures in a radial web 29 of an inertia flywheel 25 which includes a hub 26 turnably mounted on a bearing 27 fixed to spindle 6 and is restrained against axial movement by a flange 28 on the bearing 27 which actuates a thrust bearing for the hub 26. A spring 31 normally urges the clutch ring against the balls 22 to retain them in the deepest portions of the recesses. On acceleration of the strap above a predetermined valve, dependent on the tension in the spring 31, the flywheel 25 lags behind the flange 11 causing the balls to ride along the slots and force the clutch ring towards the left, as seen in Fig. 1, teeth 24 on the ring engaging teeth 24<SP>1</SP> on a locking ring 4 welded to the reel frame 1. Continuing pull on the strap causes the balls to ride still further along the slots which moves the reel bodily to the right, as seen in Fig. 1, against the action of a spring 34, an annular boss 33 on the flange 12 frictionally engaging a locking ring 4<SP>1</SP> welded to the reel frame 1. When pull on the strap ceases the springs 31 and 34 restore the reel parts to unlocked condition. In a simplified embodiment, Fig. 7 (not shown), the clutch ring (23) or boss (33) lock directly on thickened end portions (41), (41<SP>1</SP>) of the reel frame (1). A shorter hub (26<SP>1</SP>) is retained in place by a snap ring (39). The teeth (24), (24<SP>1</SP>) may be dispensed with and the engaging surfaces at both ends of the reel merely roughened or even made fairly smooth.
Patent GB-939593-A (GB)
Title: Method of erecting pre-stressed concrete structures, more particularly bridges
Inventor: WITTFOHT HANS
IPC: E01D21/10
Filed: 1960-02-16
Abstract: 939,593. Bridges. A. MANTSCHEFF. Feb. 16, 1960, No. 5537/60. Class 20 (1). A pre-stressed concrete bridge is built outwardly from abutments 10, 11, each of the sections A, B, C, A<SP>1</SP>, B<SP>1</SP>, C<SP>1</SP> being allowed to harden and then being pre-stressed before the adjacent section is constructed; the scaffolding for each section is hung on the preceding section. The pre-stressing members 13, 18, 19 comprise bundles of steel wires within ducts of metal tubing; crushing of the ducts whilst the concrete is poured being prevented by bundles of steel rods inserted therein, the pre-stressing members being subsequently inserted immediately prior to tensioning and subsequent grouting of the ducts. Further prestressing members 20 are inserted when the bridge is complete.
Patent GB-630161-A (GB)
Title: Improvements in and relating to catalysts
IPC: B01J23/80
Filed: 1947-02-26
Abstract: Foraminate catalysts of cobalt-zinc are prepared by treating an alloy thereof in which the ratio by weight cobalt: zinc is from 8 : 92 to 60 :440 with an extracting liquid to remove not more than 70 per cent by weight of the initial zinc content. Extracting liquids specified are caustic soda 5-40 per cent by weight, aqueous hydrochloric acid containing 5 to 35 per cent by weight, aqueous sulphuric acid, containing 5 to 50 per cent by weight, and according to the Provisional Specification acetic acid containing 5 per cent by weight, the treatment in all cases being carried out at 100 DEG  C. The catalysts can be used for hydrogenation, dehydrogenation, hydrogenolysis and reductive amination, both in liquid and vapour phases.ALSO:Cobalt-zinc alloys (see Group II) are used for (a) hydrogenation, e.g. ethylene to ethane, acetylene to ethylene, benzene to cyclohexane, or butadiene to butene-2; (b) dehydrogenation, e.g. propane to propene, ethyl alcohol to acetaldehyde, ethylamine to acetomitrile, ethylene to acetylene, or butene-2 to butadiene; (c) hydrogenolysis, e.g. benzyl alcohol to toluene, furfural to sylvane, or cyclopropane to propane; and (d) reductive amination, e.g. acetaldehyde to ethylamine.ALSO:Cobalt-zinc alloys containing cobalt and zinc in the ratio 8 : 92 to 60 : 40 by weight have the zinc partially extracted with dilute aqueous solutions of caustic soda hydrochloric acid, sulphuric acid, or, according to the Provisional Specification, acetic acid, at a temperature of 100 DEG C.
Patent GB-267906-A (GB)
Title: Improvements in by-product coke ovens and processes of operating same
IPC: C10B5/00
Filed: 1927-02-28
Abstract: 267,906. Semet-Solvay Co., (Assignees of Hughes, C. H.). March 22, 1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Coke ovens.-In a regenerative coke oven, in which each heating-wall has two sets of flues associated respectively with the adjacent ovens, the connections are such that the direction of flow in the flues on both sides of the oven is the same. In the vertically-flued oven shown the two sets of flues 6 in each heating- wall are on opposite sides of a massive partition 3, and corresponding flues in the two sets are connected at their upper ends by a cross-over duct 7. Beneath the ovens and running parallel thereto are groups of regenerators, each group comprising a gas regenerator G flanked by two air regenerators A, the chambers being connected through passages 11, 12 with both sets of flues 6 on opposite sides of the corresponding oven. Adjacent regenerator groups are separated by a downward continuation of the partition 3, and each regenerator tunnel is divided by partitions 13, 14, 12 into four chambers, of which the two D, D<1> at the discharge side of the bench are larger than those at the pusher side. The chambers are connected through separate ducts 19 - - 22 to waste gas tunnels ('. C<1>, and each duct has an air inlet and dampers for controlling reversal. The gas regenerators have in addition valve-controlled connections to a lean gas main. The ovens may be fired by rich gas supplied through ducts 141 beneath the heating-flues, and in this case all the inflow regenerators may be used for heating air. With both methods of firing, the inflow and outflow groups of regenerators alternate along the length of the bench. The invention is also shown applied to an horizontally-flued oven, the crossover duct extending between the uppermost flues of the two groups in the same heating-wall. In both vertically and horizontally flued ovens the cross-over duct is situated some distance beneath the coal line so that undue heating of the gas space is prevented.
Patent GB-1173201-A (GB)
Title: Improvements in or relating to Method of Producing Patterns on Wooden Surfaces
Inventor: LETRUD REIDAR
IPC: B44C3/08
Filed: 1967-02-06
Abstract: 1,173,201. Embossing wood. R. LETRUD. 6 Feb., 1967 [7 Feb., 1966], No. 5578/67. Heading B6J. A pattern is produced on the surface of a laminate by submitting the laminate to local compressions affecting at least two layers thereof to produce depressions corresponding to a predetermined pattern and then moistening the laminate to cause the locally compressed fibres to swell and form a relief pattern on the upper surface of the laminate. A laminated wood board 1 comprising fibrous layer a (e.g. plywood), semi-hard fibreboard layer b, and hard fibreboard layer c is subjected to a pattern of depressions 2 (e.g. by stamping) to depress layer a and partially depress layer b. The top layer I<SP>1</SP> is then removed (e.g. by sawing, planing or mill-cutting) to bring the bottoms 4 of the depressions approximately into alignment with the new board surface 1<SP>11</SP>. The board is then moistened (e.g. with saturated steam or boiling water) to cause compressed layer 5 to swell into relief 5<SP>1</SP>. The relief may be treated with glue or a thermosetting plastics material. The layers of the laminate may be of different colours and/or textures. In a further embodiment the removal of layer 1<SP>1</SP> is omitted and the top surface of the laminate is planed after swelling to remove a major part of the depth of relief produced by swelling.
Patent GB-390303-A (GB)
Title: Improvements relating to electric laundry or other smoothing irons
IPC: D06F75/36
Filed: 1932-02-25
Abstract: 390,303. Junction boxes. JARDINE, J. and BRITISH NATIONAL ELECTRICS, Ltd., Clyde Crane Works, Mossend, Lanarkshire. Feb. 25, 1932, No. 5617. [Class 38 (i).] The supply leads 11 of an electric iron are led through a split bush 18 in the cover 17 of a ventilated casing 8 and are connected to terminals 12 mounted on the cover of the iron and adapted to make contact with the strips 14 of the heating element. The bush 18 is of conical form and is retained in the conical end of the cover 17 by a screw cap 19 which also secures the usual stiffening spring 20. The bush positively grips the lead and prevents tugs on the lead affecting the terminal connections. The conductors of the lead are separated in the neighbourhood of the terminals and are insulated by tubes or beads. Clearance is provided between the cover 17, which may be made of a material known under the registered Trade Mark " Elo," and the casing so as to provide adequate ventilation. The casing 8 is provided with projections which together with a projection on the handle form a base on which the iron may be stood on end.
Patent GB-943173-A (GB)
Title: A process for producing a chemically resistant enamel coating on a metal surface by the dry method
IPC: C23D5/04
Filed: 1962-02-14
Abstract: Metal articles e.g. bath tubs and sanitary installations are provided with a chemically resistant enamel coating by first dusting on the hot surface an opaque or a relatively highly coloured ordinary commercial non-resistant powdered enamel (preferably containing zirconium compounds) and then applying by dusting a second enamel of high chemical resistance and fusing the coating. The second enamel may be transparent of slightly opaque and may contain antimony and/or fluorine compounds. The cover enamel preferably has a coefficient of expansion and surface tension slightly less than the first enamel and may melt either more or less easily than the first enamel.  The metal article may be provided with a ground coat enamel before the application of the double resistant coating.  The first opaque enamel may be fused before application of the outer resistant enamel.
Patent GB-591961-A (GB)
Title: Improvements in or relating to scrubbing pads
IPC: A47L13/022
Filed: 1945-03-07
Abstract: 591,961. Scrubbing-pads. BELLOW, E. A. March 7, 1945, No. 5632. [Class 28 (ii)] A holder for a metal wire &c. scrubbing-pad 11 comprises a backing plate 10'having a handle 13 threaded through holes 12, 15 in the plate and also through the loose mass of wire, to secure all together. The handle may be in the form of a coil secured by its leading end 16 abutting against the underside of the plate and its trailing end 18 engaging a notch 19 formed on the plate. The plate is curved and has teeth 21 to engage the pad.
Patent GB-388212-A (GB)
Title: An improved method of storing dry carbon dioxide ice
IPC: F25D3/12
Filed: 1932-02-25
Abstract: 388,212. Storing carbon dioxide ice. SCHLUMBOHM, P., 32, Pariser Strasse, Berlin. Feb. 25, 1932, No. 5705. [Class 29.] Carbon dioxide ice is stored by being maintained under a pressure which does not exceed that of the triple point (5À3 atm.), the temperature at which liquefaction takes place being thereby raised from minus 80‹ C. to minus 56‹ C. The dry ice may be stored in blocks in tubes 16, Fig. 3, having a common lid 17 and pressure valve 19 which opens at a maximum internal pressure of about 5 atm. A hollow jacket formed by tubes 20 surrounds the storage tubes 16, and contains carbon dioxide ice from which the evaporated gas escapes through an outlet 21 and may be used for cooling purposes. In another form of apparatus the carbon dioxide ice is stored in one block in a vessel surrounded by a cooling jacket. When used for cooling purposes the evaporation can be controlled and reduced without using any other refrigerant than the ice itself. In Fig. 1, the ice tank 1 is closed by a gas-tight lid 2 and has an automatic pressure release valve 4, the cold carbon dioxide entering the storage space of a refrigerator 8. A second valve 7 permits the gas to be removed for other purposes than cooling.
Patent GB-115076-A (GB)
Title: Improvements in Rubber Forcing Machines.
IPC: B29C48/695
Filed: 1917-04-24
Abstract: 115,076. Curbishley, E. L., and Bridge & Co., D. April 24, 1917. Extrusion machines. - Perforated forcing plates or dies i are secured to the branches b of the discharge head k of a rubber-forcing machine by caps a, the caps and branches having interrupted flanges f, d, the engaging faces of which are inclined to form parts of the same helix or of separate helices. Additional holding means comprise a boss j, to which studs m are connected, the reduced ends n of which form bolts.